Reagents, M

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  • Manganese(II) sulfate tetrahydrate, 99% (metals basis)

    Alfa Aesar

    Formula: MnO4S 4H2O Formula weight: 223.06 (151.00anhy) Purity: 99% (metals basis) CAS Number: 10101-68-5 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2833.29 Hazard Statements: H373 May cause damage to organs through prolonged or repeated…

  • Magnesium Sulfate, Anhydrous, 99.5% min

    Alfa Aesar

    CAS Number: 7487-88-9 MDL: MFCD00011110 EINECS: 231-298-2 Formula: MgSO4 Formula Weight: 120.37 Form: powder Melting Point: 1124° dec. Density: 2.66 Sensitivity: Hygroscopic Applications Suitable for sensitive…

  • Malonic acid, 99%

    Alfa Aesar

    Synonym(s): Propanedioic acid Formula: C3H4O4 Formula weight: 104.06 Purity: 99% CAS Number: 141-82-2 Packing Group: III Harmonized Tariff Code:  2917.19 Hazard Statements: H301-H318-H315-H335 Toxic if swallowed. Causes serious eye damage. Causes skin irritation. May cause…

  • Maleic anhydride, 98+%

    Alfa Aesar

    Synonym(s): cis-Butenedioic anhydride, 2,5-Furandione Formula: C4H2O3 Formula weight: 98.06 Purity: 98+% CAS Number: 108-31-6 UN Number: UN2215 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2917.14 Hazard Statements: H334-H314-H302-H317 May cause allergy…

  • Molecular sieves, 3A, powder

    Alfa Aesar

    CAS Number: 308080-99-1 Harmonized Tariff Code:  3824.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid breathing…

  • Mineral oil

    Alfa Aesar

    CAS Number: 8020-83-5 Harmonized Tariff Code:  2710.19

  • Methyl blue

    Alfa Aesar

  • Methyl palmitate, 97%

    Alfa Aesar

    Synonym(s): Methyl hexadecanoate, Palmitic acid methyl ester Formula: C17H34O2 Formula weight: 270.46 Purity: 97% CAS Number: 112-39-0 Harmonized Tariff Code:  2915.70

  • Molecular sieves, 13X, powder

    Alfa Aesar

    CAS Number: 63231-69-6 Harmonized Tariff Code:  3824.90

  • Manganese(II) sulfate monohydrate, ACS, 98.0-101.0%

    Alfa Aesar

    Formula: MnSO4 H2O Formula weight: 169.02 (151.00anhy) Purity: 98.0-101.0% CAS Number: 10034-96-5 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2833.29 Hazard Statements: H373 May cause damage to organs through prolonged or repeated…

  • Molecular sieves, 4A, powder

    Alfa Aesar

    CAS Number: 70955-01-0 Harmonized Tariff Code:  3824.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid breathing…

  • 3-Mercaptopropionic acid, 99%

    Alfa Aesar

    Formula: C3H6O2S Formula weight: 106.14 Purity: 99% CAS Number: 107-96-0 UN Number: UN2922 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2930.90 Hazard Statements: H301-H314-H318-H227 Toxic if swallowed. Causes severe skin burns and eye damage. Causes serious…

  • Magnesium chloride hexahydrate, ACS, 99.0-102.0%

    Alfa Aesar

    Formula: MgCl2 6H2O Formula weight: 203.30 (95.22anhy) Purity: 99.0-102.0% CAS Number: 7791-18-6 Harmonized Tariff Code:  2827.31

  • MES monohydrate, 98%

    Alfa Aesar

    Synonym(s): 4-Morpholineethanesulfonic acid monohydrate, 2-(4-Morpholinyl)ethanesulfonic acid monohydrate Formula: C6H13NO4S H2O Formula weight: 213.26 (195.24anhy) Purity: 98% CAS Number: 145224-94-8 Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin…

  • Magnesium chloride hexahydrate, 98+%

    Alfa Aesar

    CAS Number: 7791-18-6 MDL: MFCD00149781 EINECS: 232-094-6 Formula: MgCl2•6H2O Formula Weight: 203.30 (95.22anhy) Form: Flake Melting Point: 117° dec. Boiling Point: 4200° Density: 1.570 Sensitivity: …

  • 2-Mercaptopropionic acid, 97%

    Alfa Aesar

    Synonym(s): Thiolactic acid Formula: C3H6O2S Formula weight: 106.14 Purity: 97% CAS Number: 79-42-5 UN Number: UN2936 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2930.90 Hazard Statements: H301-H331-H314-H318-H227 Toxic if swallowed. Toxic if inhaled.…

  • 1-Methyl-1H-pyrazole, 97+%

    Alfa Aesar

    Formula: C4H6N2 Formula weight: 82.11 Purity: 97+% CAS Number: 930-36-9 UN Number: UN1993 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2933.19 Hazard Statements: H226-H315-H319-H335 Flammable liquid and vapour. Causes skin irritation. Causes serious eye…

  • 2-Methylbutyraldehyde, 95%

    Alfa Aesar

    Synonym(s): 2-Methylbutanal Formula: C5H10O Formula weight: 86.13 Purity: 95% CAS Number: 96-17-3 UN Number: UN1989 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2912.19 Hazard Statements: H225-H315-H319-H335 Highly flammable liquid and vapour. Causes skin…

  • Molybdic acid, MoO3 85% min

    Alfa Aesar

    CAS Number: 7782-91-4 Harmonized Tariff Code:  2825.70 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid breathing…

  • Methanesulfonic acid, 70% aq. soln.

    Alfa Aesar

    Formula: CH3SO3H Formula weight: 96.10 CAS Number: 75-75-2 UN Number: UN2586 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2904.10 Hazard Statements: H314 Causes severe skin burns and eye damage. Precautionary Statements: …

  • 2-Methylbenzothiazole, 98+%

    Alfa Aesar

    Formula: C8H7NS Formula weight: 149.22 Purity: 98+% CAS Number: 120-75-2 Harmonized Tariff Code:  2934.20

  • Methyl Red, ACS

    Alfa Aesar

    Synonym(s): C.I. 13020 Formula: C15H15N3O2 Formula weight: 269.30 CAS Number: 493-52-7 Harmonized Tariff Code:  2927.00

  • Murexide

    Alfa Aesar

    Synonym(s): Ammonium purpurate Formula: C8H8N6O6 Formula weight: 284.19 CAS Number: 3051-09-0 Harmonized Tariff Code:  2933.54

  • Magnesium sulfate heptahydrate, ACS, 98.0-102.0%

    Alfa Aesar

    Synonym(s): Epsom salt Formula: MgSO4 7H2O Formula weight: 246.48 (120.37anhy) Purity: 98.0-102.0% CAS Number: 10034-99-8 Harmonized Tariff Code:  2833.21

  • Magnesium sulfate, dried, contains ca 1-2 mol water of hydration

    Alfa Aesar

    Formula: MgSO4 xH2O Formula weight: 120.37(anhy) CAS Number: 22189-08-8 Harmonized Tariff Code:  2833.21

  • Molybdenum powder, APS 3-7 micron, 99.95% (metals basis)

    Alfa Aesar

    Purity: 99.95% (metals basis) CAS Number: 7439-98-7 UN Number: UN3089 Hazard Class: 4.1 Packing Group: III Harmonized Tariff Code:  8102.10 Hazard Statements: H228 Flammable solid. Precautionary Statements: P210-P280-P240-P241-P370+P378a Keep away from heat/sparks/open…

  • Methyl propiolate, 99%

    Alfa Aesar

    Synonym(s): Methyl acetylenecarboxylate, Propiolic acid methyl ester Formula: HC CCO2CH3 Formula weight: 84.07 Purity: 99% CAS Number: 922-67-8 UN Number: UN3272 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2916.19 Hazard Statements: H225-H315-H319-H335 …

  • Magnesium chloride, 1M aq. soln.

    Alfa Aesar

    Formula: Cl2Mg Formula weight: 95.22 CAS Number: 7786-30-3 Harmonized Tariff Code:  2827.31

  • Molecular sieves, 4A, 0.4-0.8mm (0.02-0.03in) beads

    Alfa Aesar

    CAS Number: 70955-01-0 Harmonized Tariff Code:  3824.90

  • Molybdenum(V) isopropoxide, 99.6% (m.b.), 5% w/v in isopropanol, packaged under…

    Alfa Aesar

    Formula: C15H35MoO5 Formula weight: 391.04 Purity: 99.6% (m.b.), 5% w/v in isopropanol, packaged under Argon in resealable ChemSeal^t bottles CAS Number: 209733-38-0 UN Number: UN1219 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2905.19 Hazard Statements: …

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